'Ringer' casting exclusive: 'Breaking Bad's' Jonathan Banks takes on Agent Machado

"Ringer" FBI Agent Machado (Nestor Carbonell) isn't easily rattled -- but when Jonathan Banks joins the show in a potentially recurring role, beginning in April, he may have met his match.

Zap2it can exclusively reveal that Banks will play Tobias, a "weathered, sarcastic, confident" gentleman (we use that word lightly) who is accused of running an illegal operation. He's definitely got a dangerous side, though, and he's so good at what he does that he knows Agent Machado can't touch him.

Banks was nominated for an Emmy for his role as Frank McPike on "Wiseguy." These days, he's best known as go-to fixer Mike Ehrmantraut on "Breaking Bad."